syuumatu ha uti de kazoku to issyo ni eiga wo mimasu.

Because when は is used as the topic particle, it is pronounced wa.

So in this sentence:

• 週末は = As for the weekend / On weekends

This is one of the first pronunciation exceptions learners meet in Japanese:

• は as a normal syllable: ha
• は as a particle: wa

The same idea applies in other common sentences, such as:

• 私は学生です → watashi wa gakusei desu

週末は sets the topic of the sentence.

It does not simply mean “weekend” by itself here; it means something like:

• As for the weekend...
• On weekends...

The particle は tells the listener what the sentence is about.

So the structure is roughly:

• 週末は = as for the weekend / on weekends
• うちで = at home
• 家族と一緒に = together with family
• 映画を見ます = watch movies / watch a movie

By itself, 週末 can sometimes be understood either way depending on context, but with は and no other time marker, it often sounds like a habitual statement:

• On weekends, I watch movies at home with my family.

If you want to clearly say this weekend, Japanese more often uses:

• 今週末 = this weekend

So:

• 週末は often suggests on weekends
• 今週末は clearly means this weekend

Both can mean home/house, but they do not always feel exactly the same.

• うち often feels a little more natural for at home in everyday speech
• 家（いえ） can mean the physical house/building more directly

So:

• うちで = at home
• 家で = at home / at the house

In many situations, both are possible. うちで often has a softer, more conversational feel.

Also, be careful: 家 can be read in different ways depending on the word:

• 家 alone as house = いえ
• in compounds like 家族 = か

で marks the place where an action happens.

Since 見る is an action, the place where that action happens takes で:

• うちで映画を見ます = watch a movie at home

A very common contrast is:

• に = destination, existence, specific point in time, etc.
• で = place where an action is performed

Compare:

• うちにいます = I am at home
• うちで見ます = I watch (it) at home

So here, で is correct because watching is an action done in that location.

It means together with family.

This part has two pieces:

• 家族と = with family
• 一緒に = together

Put together:

• 家族と一緒に = together with my family

This is a very common pattern:

• 友達と一緒に = together with a friend / friends
• 母と一緒に = together with my mother

It emphasizes that you do the action together.

Good question. In many cases, と alone can already mean with, so:

• 家族と映画を見ます can mean I watch a movie with my family

But 一緒に adds the idea of together, making it more explicit and natural in many contexts.

So the nuance is roughly:

• 家族と映画を見ます = I watch movies with my family
• 家族と一緒に映画を見ます = I watch movies together with my family

The version with 一緒に feels a bit fuller and more clearly emphasizes shared action.

Because 一緒に works adverbially here: it describes how the action is done.

• 一緒 = together / the same
• 一緒に = together

The に helps turn it into the form used with verbs.

You will see this with many words that act like na-adjectives or noun-like expressions when they modify a verb:

• 静かに話します = speak quietly
• 一緒に行きます = go together

So 一緒に見ます means watch together.

を marks the direct object of the verb.

Here, the thing being watched is 映画:

• 映画を見ます = watch a movie / watch movies

So:

• 映画 = movie
• を = object marker
• 見ます = watch / see

This is one of the most basic verb patterns in Japanese:

• Noun + を + Verb

Examples:

• 本を読みます = read a book
• 音楽を聞きます = listen to music
• テレビを見ます = watch TV

Japanese nouns usually do not show singular/plural the way English does.

So 映画 could mean:

• a movie
• movies

The exact interpretation depends on context.

That means this sentence could naturally be translated as either:

• I watch a movie at home with my family on weekends
• I watch movies at home with my family on weekends

If the sentence is talking about a usual weekend habit, English often prefers movies.

Because Japanese is basically a verb-final language.

The normal sentence order is often described as:

• Topic / time / place / companion / object / verb

So this sentence follows a very typical order:

• 週末は = topic/time
• うちで = place
• 家族と一緒に = companion/manner
• 映画を = object
• 見ます = verb

English puts the verb much earlier, but in Japanese the verb usually comes at the end of the clause.

Yes, to some extent. Japanese word order is more flexible than English, as long as the particles make the roles clear.

For example, these can still be understandable:

• 週末は家族と一緒にうちで映画を見ます
• 家族と一緒に週末はうちで映画を見ます

However, some orders sound more natural than others. The original sentence is nice and straightforward for learners.

What usually stays the same is:

• the verb tends to remain at the end
• the particles show each word’s role

Japanese often omits the subject when it is obvious from context.

So even though there is no 私 in the sentence, the speaker is usually understood to mean:

• I watch movies at home with my family on weekends

This is extremely common in Japanese. If the subject is already clear, it is usually left out.

If you wanted to include it, you could say:

• 私は週末はうちで家族と一緒に映画を見ます

But this may sound a little repetitive unless there is a reason to emphasize I.

Yes, in this sentence it is naturally understood as my family, even though Japanese does not explicitly say my.

Japanese often leaves out possessive words like my when the meaning is obvious from context.

So:

• 家族 = family
• in context, often my family

This is similar to how Japanese often omits subjects: context does a lot of work.

見ます is the polite present/future form of 見る.

• dictionary form: 見る
• polite form: 見ます

The -ます form is commonly used in:

• neutral polite conversation
• textbook examples
• speaking to people you are not very casual with

Also, the Japanese non-past form can express:

• present habitual action
• future action

So 見ます here can mean:

• watch
• will watch depending on context.

A natural plain version is:

• 週末はうちで家族と一緒に映画を見る。

The only change is:

• 見ます → 見る

Everything else can stay the same.

So:

• polite: 週末はうちで家族と一緒に映画を見ます。
• plain: 週末はうちで家族と一緒に映画を見る。

No, standard Japanese normally does not use spaces between words.

It would usually be written like this:

• 週末はうちで家族と一緒に映画を見ます。

Spaces are often added in beginner materials to make the sentence structure easier to see.

So the spaced version is for learning, but the normal written version has no spaces.